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Shan Shan Gao,Jia-Lin Li,Hui Min Qiao 대한전기학회 2019 Journal of Electrical Engineering & Technology Vol.14 No.5
A planar slot antenna operating at 2.75–9.75 GHz is studied for ultra-wideband (UWB) applications, where three controllable notched bands centered at 4, 5.9 and 8.45 GHz are further introduced to avoid some potential interferences. The elliptical slots and coplanar waveguide feeding lines are incorporated to achieve desired UWB operation. By introducing a V-shaped and two U-shaped slots on the CPW signal line, three notched bands are implemented, and each notch band can be adjusted independently. Measurements on the developed demonstrator match with the numerical simulations.
How to Establish Acute Myeloid Leukemia Xenograft Models Using Immunodeficient Mice
Shan, Wu-Lin,Ma, Xiao-Ling Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.12
The discovery of the immunodeficient mice has provided a tool for establishing animal models as hosts for in vivo analysis of AML. Various model systems have been established in the last few decades, and it is essential that murine AML models are developed to exploit more specific, targeted therapeutics. In this review, we concentrate on the models of AML and discuss the development of immunodeficiency models for understanding of leukemogenesis, describe those now available and their values and document the methods used for establishing and identifying AML mice models, as well as factors influencing engraftment of human AML in immunodeficient mice. Thus, the function of this article is to provide clinicians and experimentalists with a chronological, comprehensive appraisal of all AML model systems.
Electrocatalytic properties of Fe-based bulk metallic glasses for hydrogen evolution reaction
Shan Lin Wang,이승훈,김동현 한국화학공학회 2011 Korean Journal of Chemical Engineering Vol.28 No.8
The electrocatalytic activity of newly developed Fe-based bulk metallic glasses was evaluated by polarization and impedance measurements in deaerated 1M KOH solution at room temperature. The electrocatalytic activity as well as the glass-forming ability of the Fe_(73)C_3Si_(7.3)B_(8.5)P_(5.7)Mo_(2.5) alloy was improved by the partial substitution of Fe with 13.5 at% Co. In hydrogen evolution reaction, the metallic glasses exhibited higher activity than the activity of G14 (Fe_(60)B_(10)Si_(10)Co_(20)) metallic glass, which has been reported to be comparable to the activity of Pt electrode. The activity was further improved after a chemical pretreatment in 1 M HF solution for 1 min due to the formation of cobalt-rich layer with a large effective surface area.
New neo-lignan from Acanthopanax senticosus with protein tyrosine phosphatase 1B inhibitory activity
Jia Lin Li,Na Li,Shan-Shan Xing,Nan Zhang,BanBan Li,JianGuang Chen,안종석,Long Cui 대한약학회 2017 Archives of Pharmacal Research Vol.40 No.11
New neo-lignan, (7S, 8R)-3-hydroxyl-4-methoxyl-balanophonin (1), together with seven known compounds(2–8)were isolated fromthe EtOAc-soluble extract ofAcanthopanax senticosus. The structure of the newneo-lignanwas elucidated with spectroscopic and physico-chemicalanalyses. All the isolates were evaluated for in vitro inhibitoryactivity against PTP1B, VHR and PP1. Among them, the newcompound (1) was found to exhibit selective inhibitoryactivity on PTP1B with IC50 value 15.2 ± 1.4 lM.
한국어와 중국어 임시어 대조 분석 -파생어를 중심으로-
린샨 ( Lin Shan ) 한국언어문화교육학회 2021 언어와 문화 Vol.17 No.2
Aiming at comparing Korean language with Chinese language, this paper focuses on the derivative types among the types that form the nonce-words. Nonce-words are words that have not yet been socially recognized and are improvised by the speaker’s language skills in conversation or context. Created and used temporarily by individual members of a language community, these words may be discarded as soon as they are used. It may also be listed in advance and used as a fixed word, which is depended on the number of people used and the frequency of use. The study of nonce-words is actively conducted in Korean language, but in comparison, the number of studies in Chinese language is small and the comparative studies with Korean are rare. It is hoped to help Chinese language learners or Korean language learners to learn vocabulary while understanding the derivative-oriented nonce-words vocabulary phenomenon of Korean language and Chinese language as well as its commonalities and differences. (Hankuk University of Foreign Studies)
Zheng, Shan,Song, Qing-Kun,Zhao, Lin,Huang, Rong,Sun, Li,Li, Jing,Fan, Jin-Hu,Zhang, Bao-Ning,Yang, Hong-Jian,Xu, Feng,Zhang, Bin,Qiao, You-Lin Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.5
The aim of this study was to detail characteristics of mammary Paget's disease (PD) representing the whole population in China. A total of 4211 female breast cancer inpatients at seven tertiary hospitals from seven representative geographical regions of China were collected randomly during 1999 to 2008. Data for demography, risk factors, diagnostic imaging test, physical examination and pathologic characters were surveyed and biomarker status was tested by immunohistochemistry. The differences of demography and risk factors between PD with breast cancer and other lesions were compared using Chi-square test or t-test, with attention to physical examination and pathological characters. The percentage of PD was 1.6% (68/4211) in all breast cancers. The mean age at diagnosis was 48.1, and 63.2% (43/68) patients were premenopausal. There is no difference in demography and risk factors between PD with breast cancer and other breast cancer (P > 0.05). The main pattern of PD in physical exam and pathologic pattern were patients presenting with a palpable mass in breast (65/68, 95.6%) and PD with underlying invasive cancer (82.4%, 56/68) respectively. The rate of multifocal disease was 7.4% (5/68). PD with invasive breast cancer showed larger tumor size, more multifocal disease, lower ER and PR expression and higher HER2 overexpression than those in other invasive breast cancer (P < 0.05). These results suggested that PD in China is a concomitant disease of breast cancer, and that PD with underlying invasive cancer has more multiple foci and more aggressive behavior compared with other breast invasive cancer. We address the urgent needs for establishing diagnostic and therapeutic guidelines for mammary PD in China.